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Array antenna

An array antenna and array technology, applied in the field of antennas, can solve the problems of poor axial ratio at low elevation angles and narrow antenna bandwidth, and achieve the effects of good axial ratio bandwidth, good grounding, and strong anti-interference ability

Inactive Publication Date: 2011-07-06
HARXON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the present invention is to provide an array antenna to solve the problems of the existing array antennas with narrow bandwidth and low elevation angle axis ratio

Method used

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Embodiment Construction

[0026] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] Such as figure 1 As shown, it is a schematic front view when the array antenna of the present invention has 4 microstrip antenna units; figure 2 ,Right now figure 1 The schematic diagram of the back side of the array antenna, in the present embodiment, the above-mentioned array antenna includes a microstrip antenna array, a reflector 2 and a phase shift feeding network 3, the microstrip antenna array is composed of 4 microstrip antenna units 1, and 4 microstrip antenna units The strip antenna unit 1 takes the center of the reflector 2 as the center and is equidistantly distributed on the front of the reflector 2. The isolation between adjacent micro...

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Abstract

The invention relates to an array antenna which comprises a microstrip antenna array, a baffle board and a phase-shift feed network, wherein the microstrip antenna array is located on the front of the baffle board and the phase-shift feed network is located on the back of the baffle board. The array antenna provided by the invention has a compact structure, strong anti-jamming capability, favorable axial ratio bandwidth and low elevation gain.

Description

technical field [0001] The invention relates to the field of antennas, in particular to an array antenna. Background technique [0002] With the continuous development of satellite navigation and measurement technology, satellite positioning system has also been widely used. At present, many countries in the world have established their own satellite positioning systems, such as China's Beidou satellite navigation system, the United States' Global Positioning System (Global Positioning System, GPS), Russia's Global Navigation Satellite System (Global Navigation Satellite System, GLONASS) ) and the European Galileo satellite positioning and navigation system. The satellite signal of the satellite navigation system represented by GPS is very weak and is easily subject to external radio frequency interference. Therefore, the anti-interference performance requirements of the antenna of the satellite signal receiving device are relatively high. If the anti-interference ability o...

Claims

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Application Information

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IPC IPC(8): H01Q21/00H01Q23/00
Inventor 黄毅王春华
Owner HARXON CORP
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